James Grace, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 187
Structural equation modeling and the analysis of long-term monitoring data Structural equation modeling and the analysis of long-term monitoring data
No abstract available.
Authors
James B. Grace, Jon E. Keeley, Darren J. Johnson, Kenneth A. Bollen
Productivity is a poor predictor of plant species richness Productivity is a poor predictor of plant species richness
For more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses...
Authors
Peter B. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia R. O’Halloran, James B. Grace, T. Michael Anderson, Jonathan D. Bakker, Lori A. Biederman, Cynthia S. Brown, Yvonne M. Buckley, Laura B. Calabrese, Cheng-Jin Chu, Elsa E. Cleland, Scott L. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole M. DeCrappeo, Philip A. Fay, Jennifer Firn, Paul Frater, Eve I. Gasarch, Daneil S. Gruner, Nicole Hagenah, Janneke Hille Ris Lambers, Hope Humphries, Virginia L. Jin, Adam D. Kay, Kevin P. Kirkman, Julia A. Klein, Johannes M.H. Knops, Kimberly J. La Pierre, John G. Lambrinos, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A. Melbourne, Charles E. Mitchell, Joslin L. Moore, John W. Morgan, Brent Mortensen, John L. Orrock, Suzanne M. Prober, David A. Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Gang Wang, Peter D. Wragg, Justin P. Wright, Louie H. Yang
Local richness along gradients in the Siskiyou herb flora: R. H. Whittaker revisited Local richness along gradients in the Siskiyou herb flora: R. H. Whittaker revisited
In his classic study in the Siskiyou Mountains (Oregon, USA), one of the most botanically rich forested regions in North America, R. H. Whittaker (1960) foreshadowed many modern ideas on the multivariate control of local species richness along environmental gradients related to productivity. Using a structural equation model to analyze his data, which were never previously statistically...
Authors
James B. Grace, Susan Harrison, Ellen Ingman Damschen
Landscape-scale analyses suggest both nutrient and antipredator advantages to Serengeti herbivore hotspots Landscape-scale analyses suggest both nutrient and antipredator advantages to Serengeti herbivore hotspots
Mechanistic explanations of herbivore spatial distribution have focused largely on either resource‐related (bottom‐up) or predation‐related (top‐down) factors. We studied direct and indirect influences on the spatial distributions of Serengeti herbivore hotspots, defined as temporally stable areas inhabited by mixed herds of resident grazers. Remote sensing and variation in landscape...
Authors
T. Michael Anderson, J. Grant C. Hopcraft, Stephanie Eby, Mark Ritchie, James B. Grace, Han Olff
Predicting performance for ecological restoration: A case study using Spartina altemiflora Predicting performance for ecological restoration: A case study using Spartina altemiflora
The success of population-based ecological restoration relies on the growth and reproductive performance of selected donor materials, whether consisting of whole plants or seed. Accurately predicting performance requires an understanding of a variety of underlying processes, particularly gene flow and selection, which can be measured, at least in part, using surrogates such as neutral...
Authors
S.E. Travis, J.B. Grace
On the specification of structural equation models for ecological systems On the specification of structural equation models for ecological systems
The use of structural equation modeling (SEM) is often motivated by its utility for investigating complex networks of relationships, but also because of its promise as a means of representing theoretical concepts using latent variables. In this paper, we discuss characteristics of ecological theory and some of the challenges for proper specification of theoretical ideas in structural...
Authors
James B. Grace, T. Michael Anderson, Han Olff, S.M. Scheiner
Science and Products
Filter Total Items: 187
Structural equation modeling and the analysis of long-term monitoring data Structural equation modeling and the analysis of long-term monitoring data
No abstract available.
Authors
James B. Grace, Jon E. Keeley, Darren J. Johnson, Kenneth A. Bollen
Productivity is a poor predictor of plant species richness Productivity is a poor predictor of plant species richness
For more than 30 years, the relationship between net primary productivity and species richness has generated intense debate in ecology about the processes regulating local diversity. The original view, which is still widely accepted, holds that the relationship is hump-shaped, with richness first rising and then declining with increasing productivity. Although recent meta-analyses...
Authors
Peter B. Adler, Eric W. Seabloom, Elizabeth T. Borer, Helmut Hillebrand, Yann Hautier, Andy Hector, W. Stanley Harpole, Lydia R. O’Halloran, James B. Grace, T. Michael Anderson, Jonathan D. Bakker, Lori A. Biederman, Cynthia S. Brown, Yvonne M. Buckley, Laura B. Calabrese, Cheng-Jin Chu, Elsa E. Cleland, Scott L. Collins, Kathryn L. Cottingham, Michael J. Crawley, Ellen Ingman Damschen, Kendi F. Davies, Nicole M. DeCrappeo, Philip A. Fay, Jennifer Firn, Paul Frater, Eve I. Gasarch, Daneil S. Gruner, Nicole Hagenah, Janneke Hille Ris Lambers, Hope Humphries, Virginia L. Jin, Adam D. Kay, Kevin P. Kirkman, Julia A. Klein, Johannes M.H. Knops, Kimberly J. La Pierre, John G. Lambrinos, Wei Li, Andrew S. MacDougall, Rebecca L. McCulley, Brett A. Melbourne, Charles E. Mitchell, Joslin L. Moore, John W. Morgan, Brent Mortensen, John L. Orrock, Suzanne M. Prober, David A. Pyke, Anita C. Risch, Martin Schuetz, Melinda D. Smith, Carly J. Stevens, Lauren L. Sullivan, Gang Wang, Peter D. Wragg, Justin P. Wright, Louie H. Yang
Local richness along gradients in the Siskiyou herb flora: R. H. Whittaker revisited Local richness along gradients in the Siskiyou herb flora: R. H. Whittaker revisited
In his classic study in the Siskiyou Mountains (Oregon, USA), one of the most botanically rich forested regions in North America, R. H. Whittaker (1960) foreshadowed many modern ideas on the multivariate control of local species richness along environmental gradients related to productivity. Using a structural equation model to analyze his data, which were never previously statistically...
Authors
James B. Grace, Susan Harrison, Ellen Ingman Damschen
Landscape-scale analyses suggest both nutrient and antipredator advantages to Serengeti herbivore hotspots Landscape-scale analyses suggest both nutrient and antipredator advantages to Serengeti herbivore hotspots
Mechanistic explanations of herbivore spatial distribution have focused largely on either resource‐related (bottom‐up) or predation‐related (top‐down) factors. We studied direct and indirect influences on the spatial distributions of Serengeti herbivore hotspots, defined as temporally stable areas inhabited by mixed herds of resident grazers. Remote sensing and variation in landscape...
Authors
T. Michael Anderson, J. Grant C. Hopcraft, Stephanie Eby, Mark Ritchie, James B. Grace, Han Olff
Predicting performance for ecological restoration: A case study using Spartina altemiflora Predicting performance for ecological restoration: A case study using Spartina altemiflora
The success of population-based ecological restoration relies on the growth and reproductive performance of selected donor materials, whether consisting of whole plants or seed. Accurately predicting performance requires an understanding of a variety of underlying processes, particularly gene flow and selection, which can be measured, at least in part, using surrogates such as neutral...
Authors
S.E. Travis, J.B. Grace
On the specification of structural equation models for ecological systems On the specification of structural equation models for ecological systems
The use of structural equation modeling (SEM) is often motivated by its utility for investigating complex networks of relationships, but also because of its promise as a means of representing theoretical concepts using latent variables. In this paper, we discuss characteristics of ecological theory and some of the challenges for proper specification of theoretical ideas in structural...
Authors
James B. Grace, T. Michael Anderson, Han Olff, S.M. Scheiner